Climate change could spike wars over natural resources in the not so distant future, as projected by many experts in the scientific community.
All around the world, shortages of food and water are devastating communities and the situation is just getting worse over the years.
Although 70-75% of our planet's surface is water, only 3% of all water is fresh water.
In addition to rising sea levels, desertification, and the increase of diseases such as malaria, dengue fever, and salmonella, this will cause many people to lose their homes and thus become environmental refugees.
As time goes on, supplies of food and water will become increasingly threatened. For instance, just the melting of glaciers could reduce water supplies significantly as they provide 70% of the world's fresh water.
On top of that, shrinking lakes are making water inaccessible to millions of people.
Simultaneously, the human population is rising, and many other sources of water are being contaminated or mismanaged.
These problems are restricting people's ability to obtain their basic human rights (food, water, and shelter), and will turn many areas into war zones, causing people and entire communities to be in grave danger.
When people are placed in such a dire situation, they become desperate and fighting will ensue.
In the face of death, people will not simply give up; they will do whatever they can to survive. In Yemen, for instance, people are currently killing each other to get bottles of fresh water.
About 70% of our bodies (for adults) are made up of water. Although we can live for over a month without food, we can only last two to three days without drinking water.
Countries have diverted rivers into their borders, and away from their neighbours.
Today, many rivers are being diverted for hydroelectric dams, industries, or irrigation projects.
These rivers feed lakes and hence many lakes have significantly reduced in size.
Besides, since the rivers of one country could flow into a lake of another, this causes much international tension.
The Aral Sea used to be one of the four largest lakes in the world, with a surface area of about 68,000 square kilometres, roughly 26,300 square miles.
Since the 1960s, it has decreased in size due to Soviet irrigation projects. It is now about 10% or less of its former size.
This is actually considered one of the world's worst environmental disasters ever.
What remains of the lake is also heavily polluted. Now, many communities in Kazakhstan are facing critical public health problems.
Furthermore, the retreat of this lake has caused summers to become hotter and drier, and winters colder and longer.
As one country loses fresh water due to another, tension rises and wars over natural resources could result.
Currently, water scarcity is affecting every continent.
In fact, nearly 1.2 billion people, approximately 1/5 of the world's population, are living in areas of physical scarcity.
Moreover, another 500 million people are approaching this situation.
In addition, another 1.6 billion people, about one quarter of the world's population, are currently facing economic water shortage. In other words, their countries lack the required infrastructure to move water from rivers and aquifers.
In recent decades, wars have been fought for oil or other resources.
Wars over natural resources are no novelty. In the past, many battles have been fought in order to obtain goods from colonies, such as sugar or spices.
In the future however, these wars will likely be replaced by wars for fresh water. In the distant future, wars may even be fought for arable land.
In truth, the planet has enough water to support the entire human population but much water is wasted, contaminated or managed in an unsustainable way.
We must do we what can to not only help stop climate change, but to preserve our water for current as well as future generations.
If we don't, wars over natural resources along with the other effects of climate change could bring an end to human civilization itself.
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